WO2007036159A1 - Melangeur a filetage interne tubulaire et statique - Google Patents

Melangeur a filetage interne tubulaire et statique Download PDF

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Publication number
WO2007036159A1
WO2007036159A1 PCT/CN2006/002573 CN2006002573W WO2007036159A1 WO 2007036159 A1 WO2007036159 A1 WO 2007036159A1 CN 2006002573 W CN2006002573 W CN 2006002573W WO 2007036159 A1 WO2007036159 A1 WO 2007036159A1
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WO
WIPO (PCT)
Prior art keywords
spiral
pipe
monomer
tangent
static
Prior art date
Application number
PCT/CN2006/002573
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English (en)
Chinese (zh)
Inventor
Hongyan Yu
Original Assignee
Hongyan Yu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hongyan Yu filed Critical Hongyan Yu
Publication of WO2007036159A1 publication Critical patent/WO2007036159A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4313—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor comprising a plurality of stacked ducts having their axes parallel to the tube axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
    • B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
    • B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
    • B01F25/4314—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles
    • B01F25/43141—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor with helical baffles composed of consecutive sections of helical formed elements

Definitions

  • the present invention relates to a mixer which is suitable for use in the fields of mixing, homogenization, high-efficiency heating, heat exchange, chemical reaction, rectification, gas absorption, etc., and is particularly suitable for a static mixer which realizes the mixing and homogenization characteristics of a gas liquid.
  • the conventional static mixer is mainly composed of a flow tube and a separate spiral member provided in the flow tube (Showa 61-38653, noritakekann Co., Ltd.).
  • the spiral is a static mixer with a 180 degree helix angle, a single pitch component and a 180 degree helical element with a reverse helix angle through the clamp.
  • this spiral type mixer does not solve the problems of miniaturization, swirling flow, and the like.
  • the resistance of the present mixer is increased.
  • it is necessary to achieve the purpose by increasing the number of components, thereby increasing the installation space and increasing the manufacturing cost.
  • the problem of the swirling flow cannot be solved.
  • since it is composed of two kinds of spiral bodies there is a safety hazard in the flow path in which the impinging flow exists, such as falling off, damage, and the like.
  • the present invention provides a static in-tube spiral mixer having a good homogenization and miniaturization function.
  • the technical solution adopted by the present invention to solve the technical problems thereof is:
  • a static in-tube spiral mixer comprising a pipe for forming a fluid flow space, a spiral unit, wherein the spiral unit is axially disposed in the pipe, and the spiral unit is closely matched with the pipe.
  • the mixer comprises two or more spiral monomers, each spiral monomer having the same size; between the adjacent spiral monomers, the spiral monomer and the pipe wall of the pipe are tangent Or approximately tangent; the helix angle of the helical monomer is
  • N is a natural number.
  • the adjacent spiral cells are fixedly connected to form a spiral beam, and the spiral beam closely matches the end of the pipe.
  • spiral unit ends are mounted with a ring, the diameter of the ring is matched with the cross-sectional diameter of the spiral unit; and the rings of the adjacent spiral elements are fixedly connected at the tangent point.
  • the spiral surface of the spiral monomer has a small hole in a normal direction.
  • the pipe is a square pipe, and the spiral monomer is n 2 , wherein the natural number of n 2 ; the spiral monomer is arranged in a square shape.
  • the pipe is a circular pipe
  • the spiral monomer is l +3n (n+ 1 ), wherein n is a natural number, and the axis of one spiral monomer is the same as the axis of the circular pipe,
  • the layer spiral monomer is tangent or nearly tangent to the adjacent inner layer spiral monomer, and adjacent spiral monomers in the same layer are tangent or nearly tangent to each other.
  • the number of said spiral monomers may be seven, nineteen or thirty-seven.
  • the number of the spiral monomers may be four, nine, or sixteen. Still further, the spiral monomer is the most effective for the spiral monomer.
  • the helical monomer has a helix angle of 360 degrees.
  • the close fit can be achieved by a fixed connection.
  • Tangency means: The radial cross-section circles of adjacent spiral elements are tangent or nearly tangent to each other, and the radial cross-section circle of the spiral monomer is tangent or nearly tangent to the pipe.
  • the working principle of the present invention is as follows: Referring to Figure 1, Figure 2, Figure 3, when the fluid flows into the above-mentioned spiral monomer, the normal flow velocity and the tangential flow velocity can be formed. Since the adjacent spiral monomers are tangent or nearly tangent, the fluid flowing into the adjacent spiral monomer will also produce normal flow velocity and tangential flow velocity in the same direction, which can cancel each other when they are in contact with each other. The tangential flow rate, and the mutual striking of adjacent fluids can further play a mixing role to achieve the purpose of homogenization and miniaturization.
  • a helix is a spatial curve formed by a straight cylindrical busbar rotating at a certain angle.
  • the diameter d of the bottom surface of a straight cylinder has the following constant spiral equation in an orthogonal three-axis coordinate at a certain angle ⁇ .
  • x Acost
  • y ⁇ asint
  • the motion trajectory can form a constant helicoid.
  • the straight cylinder of the normal spiral body is made at a certain speed. Rotation, the speed and rotation angle of the normal direction of the spiral surface are constant, so when the fluid flow is often spiral, a constant velocity is formed in the normal direction, and the normal velocity can form a square rotation perpendicular to the axis of the catheter.
  • the component causes the inflowing fluid to generate a motion of rotating along the center of the shaft to achieve the purpose of swirling the inflowing fluid.
  • the continuous spiral surface can reduce the self-initiation and reduce the frictional resistance.
  • the body produces a swirling flow.
  • the small hole in the normal direction of the spiral surface can change the direction of the fluid in the tangential direction of the spiral surface, thereby intersecting the normal flow velocity and the tangential flow velocity, thereby realizing the division, mixing and refinement of the fluid, and Further reduce the resistance to fluids.
  • the two ends of the monomer are inlaid with a ring, which can divide and rectify the inflowing fluid, and is beneficial to the installation and manufacture of the spiral monomer and the rectification when flowing out.
  • the beneficial effects of the invention are mainly as follows: 1. It has good homogenization and micro-refinement function; 2. The continuous spiral surface can reduce the manufacturing cost and reduce the fluid resistance; 3. The static homogenizer can be suitable for mixing, Homogeneous, efficient heating, heat exchange, chemical reaction, rectification, gas absorption, etc.:
  • mixing effect is the dilution, neutralization, dispersion, and extraction process of fluids.
  • Static mixers are widely used in many multi-fluid mixing applications because of their physical mixing effects such as splitting, transformation, and inversion. The characteristics are good reproducibility, good uniformity, no gas intrusion; no power, small volume, low pressure loss, so it has the advantages of energy saving, cost reduction, space saving, etc., and can design corresponding products according to user requirements.
  • homogenization The homogenization of the fluid can be achieved.
  • temperature agglomerates and viscosity agglomerates are formed due to changes in the fluid flow state, thereby affecting the quality of the product.
  • the fluid's independent homogenization can be used to achieve the fluid's average speed, average temperature, uniform viscosity and average concentration, ensuring that the production pipeline is not retained and ensuring production quality. ;
  • direct heating can achieve no retention heating in a short time. This is a method of directly heating hot steam into a liquid to achieve direct heating of the liquid by heat transfer from a hot gas. Since the hot steam can be miniaturized and concentrated immediately after passing through the mixer, the heating time can be greatly shortened, and the mixed and homogeneous high-efficiency heating effect can be achieved. It can be applied to chemical decomposition, heating of organic substances, and sterilization.
  • the heat exchange efficiency can be improved. Due to the switching action and miniaturization of the mixer, the heat exchange efficiency is greatly improved, and this characteristic is particularly remarkable for high viscosity fluids. Due to the homogenization of this mixer, the cross-section homogeneity of the fluid can be optimized, Long-term retention of the temperature of the heat medium and agglomeration of the agglomerates play a role in elimination. It can prevent deterioration and deterioration of the product. It has reliable utilization value in the silicone heating, food heating and cooling industries.
  • gas absorption The effective absorption of gases and liquids can be achieved. Due to the miniaturization of the static mixer, the melting gas can be greatly micronized, the contact area of the gas and the liquid is greatly increased, and the dissolution efficiency is improved. Can be widely used in gas fusion, beverage gas addition, gas absorption and other industries.
  • Figure 1 is a schematic diagram of a normal helix.
  • Figure 2 is a normal helicoidal view.
  • Figure 3 shows the flow of adjacent normal helical monomers.
  • Figure 4 is a detailed construction of a normally spiral monomer.
  • Figure 5 is a structural view of a single screw installed in a pipe.
  • Figure 6 is a side view showing the structure of a mixer of seven spiral monomers.
  • Figure 7 is a side view showing the structure of a mixer of nineteen spiral monomers.
  • Figure 8 is an end view showing the structure of a mixer of thirty-seven spiral monomers.
  • Figure 9 is a schematic diagram showing the relationship between three typical spiral monomer configurations and configuration angles.
  • Figure 10 is a configuration diagram of a spiral bundle and a pipe.
  • Figure 11 is an axial sectional view of Figure 10.
  • Figure 12 is a side view showing the structure of a mixer of a square pipe.
  • a static in-tube spiral mixer includes a pipe 4 for forming a fluid flow space, a spiral unit 1, and the spiral unit 1 axis Aligned in the pipe 4, the spiral monomer 1 is fixedly connected to the pipe 4, the mixer comprises two or more spiral monomers 1, each spiral monomer is equal in size; Between the adjacent helical monomers, the helical monomer and the tube wall of the pipe are tangent or nearly tangent; the helical monomer has a helix angle of 360°.
  • the pipe 4 is a circular pipe, and the spiral monomer is 1 + 6, including 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, 1-6
  • the axis of a spiral monomer 1-1 is the same as the axis of the circular pipe, and the outer six spiral monomers are tangent or nearly tangent to the adjacent inner spiral monomer, and adjacent spirals in the same layer
  • the monomers are tangent or nearly tangent to each other, and the center of the six spiral monomers of the outer layer can form a regular hexagon.
  • the spiral surface of the spiral monomer is provided with a small hole 5 in the normal direction.
  • the adjacent spiral elements are fixedly joined to form a spiral bundle, and the spiral bundle is fixedly coupled to the end of the pipe.
  • the spiral unit end is mounted with a ring 2, the diameter of the ring 2 is matched with the cross-sectional diameter of the spiral unit; the ring of the adjacent spiral unit is fixedly connected at the tangential point.
  • the spiral beam is connected to the fixing ring 3 at the end of the pipe.
  • the fixing ring 3 is provided with four screw holes and a bolt 6.
  • the pipe is provided with a connecting flange, and the connecting flange and the fixing are fixed. Ring 3 is fixedly connected.
  • ⁇ (1 is the diameter of the aforementioned spiral monomer
  • dl is the radius of the spiral beam of the aforementioned 7 spiral monomer combinations
  • the radius dl is equal to the horizontal line
  • Method for processing spiral monomer First, the width is d, the length and thickness are thin. The plate, and the two ends are processed into a convex structure to mount the welded ring, and the required number of small holes are processed as required, and then processed into a common spiral monomer by using a special jig, and the spiral angle of the spiral monomer is ensured to be 360 degrees. Finally, the ring and the common spiral monomer are welded, that is, the processing of the common spiral monomer is completed.
  • the working process of this embodiment is: When the gas-liquid mixed phase flow flows into the above-mentioned spiral beam static mixer, it is first divided by the respective rings 2 and then enters the inside of the mixer. Since the spiral monomers are made in the same direction of rotation, the fluid divided by the aforementioned spiral elements is increased in the normal direction, thereby causing the fluid to generate a swirling flow that rotates along the center of each spiral, and the aforementioned spiral.
  • the surface-flowing mixed fluid has a normal-direction movement, so that when the fluid flows through a plurality of small holes machined on the spiral normal surface, it flows into the small holes to further divide and refine the fluid.
  • the building block can also further play a mixing role, leaving only the fluid moving in the axial direction, achieving the division, mixing, refinement and rectification of the fluid.
  • the spiral monomer 1 of this embodiment is a normally spiral monomer, and the rest of the structure is the same as that of the first embodiment.
  • a helix is a spatial curve formed by a straight cylindrical busbar rotating at a certain angle.
  • the diameter d of the bottom surface of a straight cylinder has the following constant spiral equation in an orthogonal three-axis coordinate at a certain angle ⁇ .
  • x Acost
  • y ⁇ asint
  • the trajectory can form a constant helicoid, and a regular helix can be formed when the tangent of each point on the space curve moves in a certain direction and angle.
  • the working process of this embodiment is: the bus bar of the straight cylinder of the constant helix body is rotated at a certain speed, and the speed and the rotation angle of the normal direction of the spiral surface are fixed, so when the fluid flow is often spiral, A constant velocity is formed in the normal direction, and the normal velocity forms a square rotation component perpendicular to the axis of the catheter, so that the flowing fluid is caused to rotate along the center of the axis to achieve the purpose of swirling the inflowing fluid.
  • the use of a continuous spiral surface can reduce the self-containment, reduce the frictional resistance, and direct the fluid to produce a rotating flow.
  • the pipe of this embodiment is a circular pipe, and the spiral unit is 1 + 6 + 12, one
  • the axis of the spiral monomer is the same as the axis of the circular pipe, and the six spiral monomers in the middle layer are tangent or nearly tangent to the adjacent inner spiral monomer, and the outer 12 spiral monomers are adjacent to the intermediate layer.
  • the spiral monomer is tangent or nearly tangent, and the adjacent spiral monomers in the same layer are tangent or nearly tangent, and the center of the six spiral monomers in the middle layer can form a regular hexagon, and the outer 12 spirals
  • the center of the unit can be connected to form a regular dodecagon.
  • the rest of the structure is the same as in Embodiment 2.
  • the effect of homogenization and miniaturization is better than that of 2, but the cost is increased.
  • Example 4 Referring to Figures 1, 2, 3, 4, 5, 8, 10, and 11, the pipe of this embodiment is a circular pipe, and the spiral unit is 1 + 6 + 12 + 18
  • the axis of a spiral monomer is the same as the axis of the circular pipe.
  • the six spiral elements in the middle layer are tangent or nearly tangent to the adjacent inner spiral monomer, and the outer layer is 12 spiral cells and the intermediate layer.
  • the adjacent spiral monomers are tangent or nearly tangent, and the outermost 18 spiral monomers are tangent or nearly tangent to the adjacent spiral monomers of the intermediate layer, and tangent between adjacent spiral monomers in the same layer
  • the center of the six spiral cells in the middle layer can form a regular hexagon
  • the center of the 12 spiral cells can form a regular dodecagon
  • the outermost 18 spiral cells can be connected by the center of the circle. It can form a positive octagon.
  • the rest of the structure is the same as that of the third embodiment.
  • a method for calculating the diameter of the pipe diameter and the combined spiral monomer wherein ⁇ (1 is the diameter of the aforementioned spiral monomer, and d3 is the radius of the spiral beam of the aforementioned 37 spiral monomer combinations, the radius d3 is formed with the horizontal line
  • ⁇ (1 is the diameter of the aforementioned spiral monomer
  • d3 is the radius of the spiral beam of the aforementioned 37 spiral monomer combinations
  • the radius d3 is formed with the horizontal line
  • the rest of the working process is the same as in the third embodiment.
  • the effect of homogenization and miniaturization is better than that of 3, but the cost is increased.
  • Pipe of the present embodiment is a square pipe, the screw 4 two monomers, said monomers square spiral arrangement. Adjacent spiral monomers are tangent or approximately tangent. The rest of the structure of the working process of this embodiment is the same as that of the third embodiment.
  • the section length of the square pipe is L
  • the relationship between the radius d4 of the spiral element and the length of the pipe is:

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)

Abstract

Ce mélangeur à filetage interne tubulaire et statique comprend un canal (4) délimitant un espace d'écoulement de fluide et au moins deux vis (1) de la même taille. Ces vis (1) sont placées axialement dans le canal (4) et fixées à celui-ci (4). Les vis adjacentes sont tangentielles ou approximativement tangentielles, la paroi du canal et les vis adjacentes étant tangentielles ou approximativement tangentielles. Les angles du filetage des vis sont N fois supérieurs à 180°, N désignant un nombre entier.
PCT/CN2006/002573 2005-09-29 2006-09-29 Melangeur a filetage interne tubulaire et statique WO2007036159A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200510060957.6 2005-09-29
CNA2005100609576A CN1939580A (zh) 2005-09-29 2005-09-29 静止型管内螺旋型混合器

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WO2007036159A1 true WO2007036159A1 (fr) 2007-04-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITCA20100007A1 (it) * 2010-05-24 2010-08-23 Cosimo Mereu Irroratrice ad accumulo d'aria in pressione
WO2016043614A3 (fr) * 2014-08-29 2016-06-16 Micula Viorel Système modulaire pour entraînement tourbillonnaire et orientabilité régulée de flux d'air chauds

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101952018B (zh) * 2008-02-21 2013-07-31 蓝星环境股份有限公司 用于改善气-液输送的装置
CN103240015A (zh) * 2013-04-19 2013-08-14 浙江理工大学 扭曲孔片式油气水三相流静态混合器
CN103962022A (zh) * 2014-04-16 2014-08-06 中国北方发动机研究所(天津) 一种低压力损失的流体混合装置
CN112647565A (zh) * 2019-10-10 2021-04-13 广东尚高科技有限公司 一种智能化控制方便使用的恒温花洒

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2150916Y (zh) * 1992-09-26 1993-12-29 大连金州混合器厂 一种静态混合器
CN1134684A (zh) * 1993-11-12 1996-10-30 康佩斯调合和挤压设备有限公司 用于可增塑混合料的多螺杆连续混合机

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2150916Y (zh) * 1992-09-26 1993-12-29 大连金州混合器厂 一种静态混合器
CN1134684A (zh) * 1993-11-12 1996-10-30 康佩斯调合和挤压设备有限公司 用于可增塑混合料的多螺杆连续混合机

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITCA20100007A1 (it) * 2010-05-24 2010-08-23 Cosimo Mereu Irroratrice ad accumulo d'aria in pressione
WO2016043614A3 (fr) * 2014-08-29 2016-06-16 Micula Viorel Système modulaire pour entraînement tourbillonnaire et orientabilité régulée de flux d'air chauds

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Publication number Publication date
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